The icon's shaped like a square with a star at the center and a horizontal line that runs towards the top. At the top of the square are two vertical rectangles that overlap, one towards the left and one towards the right. At the bottom right of the square is a overlapping circle with a slanted line running through it.

This is the Event Declined icon for Windows 10. Here we go. Optimized for 32x32 px, these are the simplest icons in the line style. Downloadable formats are PNG and SVG, among others. Icons8 icon pack is unique in providing a huge number of icons designed by the same team of four designers who create the new icons every working day in the same style and with the same quality. Same cool as the Bat Face, huh.